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// <system_error> implementation file
// Copyright (C) 2007-2019 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
#define _GLIBCXX_USE_CXX11_ABI 1
#define __sso_string __sso_stringxxx
#include <cstring>
#include <system_error>
#include <bits/functexcept.h>
#include <limits>
#include <errno.h>
#undef __sso_string
namespace
{
using std::string;
struct generic_error_category : public std::error_category
{
virtual const char*
name() const noexcept
{ return "generic"; }
_GLIBCXX_DEFAULT_ABI_TAG
virtual string
message(int i) const
{
// XXX locale issues: how does one get or set loc.
// _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
return string(strerror(i));
}
};
struct system_error_category : public std::error_category
{
virtual const char*
name() const noexcept
{ return "system"; }
_GLIBCXX_DEFAULT_ABI_TAG
virtual string
message(int i) const
{
// XXX locale issues: how does one get or set loc.
// _GLIBCXX_HAVE_STRERROR_L, strerror_l(i, cloc)
return string(strerror(i));
}
virtual std::error_condition
default_error_condition(int ev) const noexcept
{
switch (ev)
{
// List of errno macros from [cerrno.syn].
// C11 only defines EDOM, EILSEQ and ERANGE, the rest are from POSIX.
// They expand to integer constant expressions with type int,
// and distinct positive values, suitable for use in #if directives.
// POSIX adds more macros (but they're not defined on all targets,
// see config/os/*/error_constants.h), and POSIX allows
// EAGAIN == EWOULDBLOCK and ENOTSUP == EOPNOTSUPP.
#ifdef E2BIG
case E2BIG:
#endif
#ifdef EACCES
case EACCES:
#endif
#ifdef EADDRINUSE
case EADDRINUSE:
#endif
#ifdef EADDRNOTAVAIL
case EADDRNOTAVAIL:
#endif
#ifdef EAFNOSUPPORT
case EAFNOSUPPORT:
#endif
#ifdef EAGAIN
case EAGAIN:
#endif
#ifdef EALREADY
case EALREADY:
#endif
#ifdef EBADF
case EBADF:
#endif
#ifdef EBADMSG
case EBADMSG:
#endif
#ifdef EBUSY
case EBUSY:
#endif
#ifdef ECANCELED
case ECANCELED:
#endif
#ifdef ECHILD
case ECHILD:
#endif
#ifdef ECONNABORTED
case ECONNABORTED:
#endif
#ifdef ECONNREFUSED
case ECONNREFUSED:
#endif
#ifdef ECONNRESET
case ECONNRESET:
#endif
#ifdef EDEADLK
case EDEADLK:
#endif
#ifdef EDESTADDRREQ
case EDESTADDRREQ:
#endif
case EDOM:
#ifdef EEXIST
case EEXIST:
#endif
#ifdef EFAULT
case EFAULT:
#endif
#ifdef EFBIG
case EFBIG:
#endif
#ifdef EHOSTUNREACH
case EHOSTUNREACH:
#endif
#ifdef EIDRM
case EIDRM:
#endif
case EILSEQ:
#ifdef EINPROGRESS
case EINPROGRESS:
#endif
#ifdef EINTR
case EINTR:
#endif
#ifdef EINVAL
case EINVAL:
#endif
#ifdef EIO
case EIO:
#endif
#ifdef EISCONN
case EISCONN:
#endif
#ifdef EISDIR
case EISDIR:
#endif
#ifdef ELOOP
case ELOOP:
#endif
#ifdef EMFILE
case EMFILE:
#endif
#ifdef EMLINK
case EMLINK:
#endif
#ifdef EMSGSIZE
case EMSGSIZE:
#endif
#ifdef ENAMETOOLONG
case ENAMETOOLONG:
#endif
#ifdef ENETDOWN
case ENETDOWN:
#endif
#ifdef ENETRESET
case ENETRESET:
#endif
#ifdef ENETUNREACH
case ENETUNREACH:
#endif
#ifdef ENFILE
case ENFILE:
#endif
#ifdef ENOBUFS
case ENOBUFS:
#endif
#ifdef ENODATA
case ENODATA:
#endif
#ifdef ENODEV
case ENODEV:
#endif
#ifdef ENOENT
case ENOENT:
#endif
#ifdef ENOEXEC
case ENOEXEC:
#endif
#ifdef ENOLCK
case ENOLCK:
#endif
#ifdef ENOLINK
case ENOLINK:
#endif
#ifdef ENOMEM
case ENOMEM:
#endif
#ifdef ENOMSG
case ENOMSG:
#endif
#ifdef ENOPROTOOPT
case ENOPROTOOPT:
#endif
#ifdef ENOSPC
case ENOSPC:
#endif
#ifdef ENOSR
case ENOSR:
#endif
#ifdef ENOSTR
case ENOSTR:
#endif
#ifdef ENOSYS
case ENOSYS:
#endif
#ifdef ENOTCONN
case ENOTCONN:
#endif
#ifdef ENOTDIR
case ENOTDIR:
#endif
#if defined ENOTEMPTY && (!defined EEXIST || ENOTEMPTY != EEXIST)
// AIX sometimes uses the same value for EEXIST and ENOTEMPTY
case ENOTEMPTY:
#endif
#ifdef ENOTRECOVERABLE
case ENOTRECOVERABLE:
#endif
#ifdef ENOTSOCK
case ENOTSOCK:
#endif
#ifdef ENOTSUP
case ENOTSUP:
#endif
#ifdef ENOTTY
case ENOTTY:
#endif
#ifdef ENXIO
case ENXIO:
#endif
#if defined EOPNOTSUPP && (!defined ENOTSUP || EOPNOTSUPP != ENOTSUP)
case EOPNOTSUPP:
#endif
#ifdef EOVERFLOW
case EOVERFLOW:
#endif
#ifdef EOWNERDEAD
case EOWNERDEAD:
#endif
#ifdef EPERM
case EPERM:
#endif
#ifdef EPIPE
case EPIPE:
#endif
#ifdef EPROTO
case EPROTO:
#endif
#ifdef EPROTONOSUPPORT
case EPROTONOSUPPORT:
#endif
#ifdef EPROTOTYPE
case EPROTOTYPE:
#endif
case ERANGE:
#ifdef EROFS
case EROFS:
#endif
#ifdef ESPIPE
case ESPIPE:
#endif
#ifdef ESRCH
case ESRCH:
#endif
#ifdef ETIME
case ETIME:
#endif
#ifdef ETIMEDOUT
case ETIMEDOUT:
#endif
#ifdef ETXTBSY
case ETXTBSY:
#endif
#if defined EWOULDBLOCK && (!defined EAGAIN || EWOULDBLOCK != EAGAIN)
case EWOULDBLOCK:
#endif
#ifdef EXDEV
case EXDEV:
#endif
return std::error_condition(ev, std::generic_category());
/* Additional system-dependent mappings from non-standard error codes
* to one of the POSIX values above would go here, e.g.
case EBLAH:
return std::error_condition(EINVAL, std::generic_category());
*/
default:
return std::error_condition(ev, std::system_category());
}
}
};
const generic_error_category generic_category_instance{};
const system_error_category system_category_instance{};
}
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
void
__throw_system_error(int __i __attribute__((unused)))
{
_GLIBCXX_THROW_OR_ABORT(system_error(error_code(__i, generic_category())));
}
error_category::~error_category() noexcept = default;
const error_category&
_V2::system_category() noexcept { return system_category_instance; }
const error_category&
_V2::generic_category() noexcept { return generic_category_instance; }
system_error::~system_error() noexcept = default;
error_condition
error_category::default_error_condition(int __i) const noexcept
{ return error_condition(__i, *this); }
bool
error_category::equivalent(int __i,
const error_condition& __cond) const noexcept
{ return default_error_condition(__i) == __cond; }
bool
error_category::equivalent(const error_code& __code, int __i) const noexcept
{ return *this == __code.category() && __code.value() == __i; }
error_condition
error_code::default_error_condition() const noexcept
{ return category().default_error_condition(value()); }
#if _GLIBCXX_USE_CXX11_ABI
// Return error_category::message() as a COW string
__cow_string
error_category::_M_message(int i) const
{
string msg = this->message(i);
return {msg.c_str(), msg.length()};
}
#endif
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace
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